2003 Audi A6 vs. 2009 Audi A4
To start off, 2009 Audi A4 is newer by 6 year(s). Which means there will be less support and parts availability for 2003 Audi A6. In addition, the cost of maintenance, including insurance, on 2003 Audi A6 would be higher. At 2,995 cc (6 cylinders), 2009 Audi A4 is equipped with a bigger engine. In terms of performance, 2009 Audi A4 (328 HP @ 5500 RPM) has 200 more horse power than 2003 Audi A6. (128 HP @ 5700 RPM) In normal driving conditions, 2009 Audi A4 should accelerate faster than 2003 Audi A6. With that said, vehicle weight also plays an important factor in acceleration. 2009 Audi A4 weights approximately 220 kg more than 2003 Audi A6. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2009 Audi A4 is four wheel drive (4WD), it will have significant more traction and grip than 2003 Audi A6. In wet, icy, snow, or gravel driving conditions, 2009 Audi A4 will offer significantly more control. With that said, do keep in mind that many other factors such as speed and the wear on your tires can also have significant impact on traction and control. Let's talk about torque, 2009 Audi A4 (440 Nm @ 2900 RPM) has 245 more torque (in Nm) than 2003 Audi A6. (195 Nm @ 3300 RPM). This means 2009 Audi A4 will have an easier job in driving up hills or pulling heavy equipment than 2003 Audi A6.
Compare all specifications:
| 2003 Audi A6 | 2009 Audi A4 | |
| Make | Audi | Audi |
| Model | A6 | A4 |
| Year Released | 2003 | 2009 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 1984 cc | 2995 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Horse Power | 128 HP | 328 HP |
| Engine RPM | 5700 RPM | 5500 RPM |
| Torque | 195 Nm | 440 Nm |
| Torque RPM | 3300 RPM | 2900 RPM |
| Engine Bore Size | 82.5 mm | 84.6 mm |
| Engine Stroke Size | 92.8 mm | 89 mm |
| Engine Compression Ratio | 10.3:1 | 10.3:1 |
| Acceleration 0-100mph | 10.8 seconds | 5.1 seconds |
| Drive Type | Front | 4WD |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1430 kg | 1650 kg |
| Vehicle Length | 4800 mm | 4720 mm |
| Vehicle Width | 1820 mm | 1830 mm |
| Vehicle Height | 1460 mm | 1410 mm |
| Wheelbase Size | 2770 mm | 2820 mm |
| Fuel Consumption Overall | 8.4 L/100km | 9.7 L/100km |
